ModsFinder

Seeded Dimensions

by Mike

Seeded Dimensions lets a server owner set a separate world seed for each dimension through a config file.

FabricServer-side onlyAll rights reserved1.20.1 – 1.21.11

What it does

Each dimension can be given its own seed in the config set, so the overworld, the nether and the end no longer have to share one. A dimension list in the config file names the dimensions to change, and any dimension left out keeps the default seed. The mod runs on the server alone, so players join without installing anything. It is published for Fabric only, across 18 release versions 1.20.1 – 1.21.11, and requires Fabric API. The mod is not open source and is released under All rights reserved.

Key features

  1. Per-dimension seeds

    Each listed dimension takes its own seed value, set in the config file.

  2. Default seed fallback

    Dimensions not named in the dimension list keep the default seed.

  3. Custom seed values

    The seed for each dimension can be any custom value the server owner chooses.

Compatibility

Latest build for each game version and loader.

1.21.x12 of 12 versions with builds
1.21.111.0.0
1.21.101.0.0
1.21.91.0.0
1.21.81.0.0
1.21.71.0.0
1.21.61.0.0
1.21.51.0.0
1.21.41.0.0
1.21.31.0.0
1.21.21.0.0
1.21.11.0.0
1.211.0.0
1.20.x6 of 6 versions with builds
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 1

Fabric APILightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.
Required

How it compares

Full comparison

Panda Per-World-Seed is also server-side only and is open source under the CC0 1.0 Universal license, published for Fabric from 1.21.1 onward. Seed Guard is server-side only, open source under the MIT License, and covers Fabric and Quilt from 1.20 onward.

ModLoadersGame versionsEnvironmentUpdated
Seeded DimensionsFabric1.20.1 – 1.21.11Server-side only2025-12-07
Panda Per-World-SeedFabric1.21.1 – 26.3Server-side only2026-10-04
Seed GuardFabric and Quilt1.20 – 26.3Server-side only2026-09-20

Questions

Does Seeded Dimensions need Fabric API?

Yes. Fabric API is required, and the mod is published for Fabric only.

Do players need to install Seeded Dimensions?

No. Players join without it, since only the server has to run the mod.

In the catalog

Seeded Dimensions is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 19,862 mods support Minecraft 1.21.11.

World generation mods8,515Fabric modsMods for 1.21.1119,862

More from Mike

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Toggle Scoreboard1.19 – 26.2I Know How To Play!1.17 – 26.3"Limitless" Banners1.20 – 26.3Anvil Too Expensive1.19.2 – 1.21.5Animated Inventory1.20 – 26.2Enchantable Mace1.21 – 1.21.11

Similar mods

Biomes O' Plenty1.7.10 – 26.3Cobblemon1.19.2 – 1.21.1Terralith1.18.2 – 26.3YUNG's Better Nether Fortresses1.18.2 – 26.1.2Dungeons and Taverns1.19 – 26.3Yeetus Experimentus1.18.2 – 26.3

What the author says

You can add any dimension to this list, use "default" to use the default config file seed, or set a number for a custom seed.
Mike, on the Modrinth page

Official listing

Owner
Mike
Published
2025-12-07
Updated on Modrinth
2025-12-07
Facts verified
2026-10-15

Tags

Game mechanicsUtilityWorld generationCursedManagement
Open on ModrinthCompare